I would like to use the Sunspot Cycle activity with my students, preferrably on iPads, but am running into some issue. The data is great but I would like them to easily be able to zoom into only a few decades. I want them to be able to see the 11 year cycle of the sunspots. The way the data set is now it's very hard to estimate the years for a complete cycle. It only gets down to decades.
Also the zooming in feature doesn't seem to work on my iPad.